128526166855 has 8 divisors (see below), whose sum is σ = 154488028464. Its totient is φ = 102649848000.

The previous prime is 128526166819. The next prime is 128526166859. The reversal of 128526166855 is 558661625821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128526166855 - 2¹⁷ = 128526035783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128526166796 and 128526166805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128526166859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21382381 + ... + 21388390.

It is an arithmetic number, because the mean of its divisors is an integer number (19311003558).

Almost surely, 2^128526166855 is an apocalyptic number.

128526166855 is a deficient number, since it is larger than the sum of its proper divisors (25961861609).

128526166855 is an equidigital number, since it uses as much as digits as its factorization.

128526166855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42771377.

The product of its digits is 6912000, while the sum is 55.

The spelling of 128526166855 in words is "one hundred twenty-eight billion, five hundred twenty-six million, one hundred sixty-six thousand, eight hundred fifty-five".